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Great Britain.Pesticides Safety Directorate.
Great Britain.Department for Environment, Food & Rural Affairs.
Long Ashton Research Station.Centre for Aquatic Plant Management.
London : DEFRA Publications,
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PB2289.
"This booklet was prepared by the Centre for Aquatic Plant Management of the Institute of Arable Crops Research, Long Ashton Research Station, and the Pesticides Safety Directorate"
Originally published: MAFF: 1995.